<br><br><div class="gmail_quote">On Wed, Sep 21, 2011 at 1:47 PM, Raymond Wagner <span dir="ltr"><<a href="mailto:raymond@wagnerrp.com">raymond@wagnerrp.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div class="im">On 9/21/2011 14:14, linux guy wrote:<br>
> I want the BE to have a RAID array, so nothing ever gets lost. I'd<br>
> like to run RAID 5 with 4 drives and 6 to 10 GB of usable storage.<br>
<br>
</div>Four drive hardware RAID5 is a waste. Either you get a cheap card that<br>
runs off the CPU, in which case you're better off with Linux software<br>
RAID, or you get one with proper offloading, in which case you've spent<br>
a lot of money that would have been better spent on RAID1 and more<br>
drives. </blockquote><div><br>Its very interesting that you bring this up. <br><br>Doesn't the ProRaid enclosure handle the RAID aspect entirely in hardware ? I understand that it will run from USB3.0 or SINGLE CHANNEL eSATA and thus I assume the drive(s) in it look like one big storage volume, when in fact they are a RAIDed storage device. That was one of the appeals of it to me.<br>
<br>Some of the other 4 bay RAID enclosures require either 4 SATA connections or a multiple channel SATA card/cable. The ProRAID doesn't.<br><br>This is the MB I was intent on using.<br><br><a href="http://usa.asus.com/Motherboards/Intel_Socket_1155/P8H67M_PROCSM/">http://usa.asus.com/Motherboards/Intel_Socket_1155/P8H67M_PROCSM/</a><br>
<br>It has <br><br><span><strong>IntelŪ H67(B3) Express Chipset</strong> <br>
2 xSATA 6.0 Gb/s ports (gray)<br>
4 xSATA 3.0 Gb/s ports (blue) <br>
Intel Rapid Storage Technology Support RAID 0,1,5,10 <br><br>The RAID options are set in BIOS.<br><br>That would be a totally hardware based RAID, right ?<br></span><br></div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
RAID5 has a lot of deficiencies with respect to writing data,<br>
and it's not worth the efficiency benefits until you have a lot more<br>
than four drives, at which point you would be better with RAID6, or<br>
something else that allows more than a single drive failure.<br><div class="im"></div></blockquote><div><br>I'm not sure what to say. I haven't had a HD fail in the last 10 years. I'm not sure why I would need a RAID setup that would tolerate multiple drive failures.<br>
<br>What would the multiple drive failure tolerant RAID be ? RAID 1 ?<br><br> </div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"><div class="im">
> The Shuttle is small and easily moved. The external Proraid is hot<br>
> plug and the two would fit really nicely on my rack shelves.<br>
<br>
</div>Are you talking about shelving units to put in a computer rack, or just<br>
wireframe storage shelves in your basement?<br></blockquote><div><br>Wireframe storage shelves. That is where my satellite receivers, HD PVR boxes, networking devices, nas server , asterisk server and hardware and zoneminder server are located.<br>
<br>I'll probably use the same hardware for the zoneminder server as the myth server. <br> <br></div></div>